Understanding the Types of Cracks in Concrete

Concrete cracks fall into three main types: hairline (shrinkage) cracks, settlement cracks and structural cracks. Hairline cracks are usually cosmetic. Settlement cracks point to a base that was not properly compacted. Structural cracks that widen or leave one side of the slab higher than the other are a tripping hazard and need the damaged section cut out and replaced.

Common Types of Concrete Cracks and What Causes Them

Hairline/Shrinkage Cracks

When concrete dries too quickly or unevenly, hairline or shrinkage cracks can form. They are generally harmless, usually only affecting the appearance. You can lower the risk of hairline and shrinkage cracks by using proper curing practices.

Settlement Cracks

Settlement cracks may appear when the ground underneath the slab has not been properly compacted or prepared. As the ground underneath the slab settles, a void forms underneath leaving a potential weak spot that could crack if the slab above is overloaded.

Structural Cracks

Structural cracks may happen because of unstable sub-base or after freeze-thaw cycles and are visible at the surface. In concrete not properly reinforced, the cracks will grow wider and become displaced creating unevenness in the slab and a tripping hazard. Unfortunately, the only way to fix a structural crack is to cut out the cracked portion and replace it with reinforced concrete.

Best Concrete Crack Repair Methods Explained

Different types of cracks in concrete require different approaches to repairs. For minor cracks, a simple crack filler or caulking may be enough to repair the problem. Larger cracks may require more intensive attention. Our experts can help identify the types of cracks and advise you on the best solution to repair it.

Preventing Concrete Cracks

You can lower the chance of concrete cracks by engaging in the following maintenance procedures:

• Take more time to ensure that the foundation is set properly before pouring the concrete
• Properly cure the concrete
• Install control joints with proper placement to strengthen the slab

When Is a Concrete Crack a Problem?

Watch for cracks that keep getting wider, edges that sit at different heights, and cracks that let water collect under the slab. Minnesota’s freeze-thaw cycles make these worse: water that seeps into a crack freezes, expands and pushes the sides farther apart each winter. A crack in a sidewalk, step or garage floor that has become uneven is a safety issue as well as a cosmetic one, and our team can tell you whether a sidewalk repair or a full section replacement is the right fix.

Contact Asphalt Driveway Company for Concrete Repair in Twin Cities, MN

As Minnesota’s largest residential driveway company, we at Asphalt Driveway Company take great pride in providing excellent service to our clients across the Twin Cities. Our team is skilled in numerous concrete services, such as patio construction, driveway installation/repair, garage floor replacement, and more.

We take great care in fulfilling our clients’ needs on schedule and never ask for payment until the project is complete. Since 1951, Asphalt Driveway Company has proudly served the community from the same address and phone number, proving we’re here to stay. Whether you’re ready to start your project or simply exploring your options, call us today at (612) 676-1717 or contact us online for your FREE estimate!